1. Department of Agricultural and Food Sciences, University of Bologna, Bologna, Emilia-Romagna, Italy
2. Animal Behaviour, Cognition and Welfare Group, School of Life Sciences, University of Lincoln, Lincoln, UK
3. Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
4. Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari, Bari, Puglia, Italy